P – EC – PP1
About how many people are in line?P – EC – PP2
Would a better estimate for the following picture be 20 or 50?P – EC – PP3
What would you use as a referent to estimate the number of people in line?P – EC – PP4
Would a better referent be 5 or 10 for estimating the number of people in line?Page 233 of 307